1 // SPDX-License-Identifier: GPL-2.0
2 /*
3 * Copyright (C) Linaro.
4 * Copyright (C) Huawei Futurewei Technologies.
5 */
6
7 #include <linux/crash_core.h>
8 #include <asm/cpufeature.h>
9 #include <asm/memory.h>
10 #include <asm/pgtable-hwdef.h>
11 #include <asm/pointer_auth.h>
12
13 static inline u64 get_tcr_el1_t1sz(void);
14
get_tcr_el1_t1sz(void)15 static inline u64 get_tcr_el1_t1sz(void)
16 {
17 return (read_sysreg(tcr_el1) & TCR_T1SZ_MASK) >> TCR_T1SZ_OFFSET;
18 }
19
arch_crash_save_vmcoreinfo(void)20 void arch_crash_save_vmcoreinfo(void)
21 {
22 VMCOREINFO_NUMBER(VA_BITS);
23 /* Please note VMCOREINFO_NUMBER() uses "%d", not "%x" */
24 vmcoreinfo_append_str("NUMBER(MODULES_VADDR)=0x%lx\n", MODULES_VADDR);
25 vmcoreinfo_append_str("NUMBER(MODULES_END)=0x%lx\n", MODULES_END);
26 vmcoreinfo_append_str("NUMBER(VMALLOC_START)=0x%lx\n", VMALLOC_START);
27 vmcoreinfo_append_str("NUMBER(VMALLOC_END)=0x%lx\n", VMALLOC_END);
28 vmcoreinfo_append_str("NUMBER(VMEMMAP_START)=0x%lx\n", VMEMMAP_START);
29 vmcoreinfo_append_str("NUMBER(VMEMMAP_END)=0x%lx\n", VMEMMAP_END);
30 vmcoreinfo_append_str("NUMBER(kimage_voffset)=0x%llx\n",
31 kimage_voffset);
32 vmcoreinfo_append_str("NUMBER(PHYS_OFFSET)=0x%llx\n",
33 PHYS_OFFSET);
34 vmcoreinfo_append_str("NUMBER(TCR_EL1_T1SZ)=0x%llx\n",
35 get_tcr_el1_t1sz());
36 vmcoreinfo_append_str("KERNELOFFSET=%lx\n", kaslr_offset());
37 vmcoreinfo_append_str("NUMBER(KERNELPACMASK)=0x%llx\n",
38 system_supports_address_auth() ?
39 ptrauth_kernel_pac_mask() : 0);
40 }
41